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//===-- String Writer implementation for printf -----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/printf_core/string_writer.h"
#include "src/__support/CPP/string_view.h"
#include "src/stdio/printf_core/core_structs.h"
#include "src/string/memory_utils/memcpy_implementations.h"
#include "src/string/memory_utils/memset_implementations.h"
#include <stddef.h>
namespace __llvm_libc {
namespace printf_core {
void StringWriter::write(cpp::string_view new_string) {
size_t len = new_string.size();
if (len > available_capacity)
len = available_capacity;
if (len > 0) {
inline_memcpy(cur_buffer, new_string.data(), len);
cur_buffer += len;
available_capacity -= len;
}
}
void StringWriter::write(char new_char, size_t len) {
if (len > available_capacity)
len = available_capacity;
if (len > 0) {
inline_memset(cur_buffer, static_cast<uint8_t>(new_char), len);
cur_buffer += len;
available_capacity -= len;
}
}
void StringWriter::write(char new_char) {
if (1 > available_capacity)
return;
cur_buffer[0] = new_char;
++cur_buffer;
available_capacity -= 1;
}
int StringWriter::write_str(void *raw_pointer, cpp::string_view new_string) {
StringWriter *string_writer = reinterpret_cast<StringWriter *>(raw_pointer);
string_writer->write(new_string);
return WRITE_OK;
}
int StringWriter::write_chars(void *raw_pointer, char new_char, size_t len) {
StringWriter *string_writer = reinterpret_cast<StringWriter *>(raw_pointer);
string_writer->write(new_char, len);
return WRITE_OK;
}
int StringWriter::write_char(void *raw_pointer, char new_char) {
StringWriter *string_writer = reinterpret_cast<StringWriter *>(raw_pointer);
string_writer->write(new_char);
return WRITE_OK;
}
} // namespace printf_core
} // namespace __llvm_libc
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